Mystery Diners - Season 3 - Eps 1: Dining in the Dark
The owner of Catharsis in Miami, Florida receives complaints about inappropriate touching and theft of items during the restaurants "Dining in the Dark" event. The targets are three newly hired servers (two waiters, and one waitress). The Mystery Diners head into the restaurant and discover that the new waitress and waiter have created a game by screwing with both the customers and food and stealing from them. The waiter and waitress are both fired during the confrontation. The narrator revealed that the former servers have gone their separate ways. The remaining new server has been promoted to head server.
About Mystery Diners

Title: Mystery Diners
First Air Date: 2012-05-20
Last Air Date: 2016-04-20
Status: Returning Series
Rating: 1.5/10 (from 11 votes)
Language: EN
Seasons: 11
Total Episodes: 136
Network: Food Network
Genres: Reality
Production Companies: T Group Productions
Synopsis
What happens in the food world when a bad employee starts to take down an otherwise thriving establishment or when restaurant owners suspect someone of not doing their job appropriately? They call in the Mystery Diners. These undercover operatives go into restaurants, bars and food service establishments with hidden cameras to find out what's really going on when the boss isn't around.